../ dmsp_15_ephemeris_20110710.txt 22-Jun-2023 00:18 109518 dmsp_16_ephemeris_20110710.txt 22-Jun-2023 00:18 109635 dmsp_17_ephemeris_20110710.txt 22-Jun-2023 00:18 109597 dmsp_18_ephemeris_20110710.txt 22-Jun-2023 00:18 109649